USE OF 4-ISOPROPYLPHENYLUREAS FOR COMBATING WEEDS IN GRAIN CROPS RICE MAIZE COTTON AND SOYA

摘要

1407586 Combating weeds CIBA-GEIGY AG 19 April 1971 [27 Feb 1970 21 Sept 1970] 22624/71 Addition to 1255258 Heading A5E [Also in Division C2] A method of selectively combating weeds at a locus comprising wheat, barley, rye, oats, rice, maize, cotton or soya, comprises applying to the locus a compound of formula wherein X represents H or Cl and R represents H, C 2 -C 4 alkyl. C 2 -C 4 alkenyl or C 2 -C 4 alkynyl except that X and R are never simultaneously hydrogen.